The Traffic Group

Traffic Engineering

Precision traffic engineering services and transportation planning studies are critical to Master Plans as they often dictate the need for additional roadway infrastructure and zoning control. This is why a growing number of clients look to The Traffic Group for our long-standing reliability and expertise. Equally vital to the safe and effective movement of vehicles along a roadway or within a parking lot is traffic engineering design. Whether you are planning for a new traffic signal, signage, or garage circulation pattern, The Traffic Group is ready to provide expert roadway and parking lot design assistance.

SAMPLE ENGINEERING SERVICES

Capacity Analyses

Computer Modeling

Corridor Progression Studies

Expert Testimony

Feasibility Studies

Master Planning and Zoning

Network Simulation

Roundabout Analysis

Site Development & Access

Traffic Calming

Traffic Forecasting

Traffic Impact Studies

Traffic Safety Evaluations

Traffic Signal Warrant Analyses

Trip Generation Studies

SAMPLE DESIGN SERVICES

Conceptual Geometric Design

High Accident Location Remedies

Lighting Plans

Maintenance of Traffic Plans

Parking Circulation and Needs Studies

Pavement Marking Plans

Roundabout Design

Signing Plans

Specifications for Traffic Signal Equipment

Traffic Control Plans

Traffic Signal Design

SELECTED
PROJECTS

Maryland Million 2018

Maryland Million 2018

CLIENT: Maryland Jockey Club

LOCATION: Laurel, Maryland
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Grand Prix of Baltimore 2011 and 2013

Grand Prix of Baltimore 2011 and 2013

CLIENT: Baltimore Racing Development, LLC

LOCATION: Baltimore City, Maryland
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Great Wolf Lodge

Great Wolf Lodge

CLIENT: Great Wolf Resorts, Inc.

LOCATION: Perryville, Maryland
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Yorkridge Shopping Center

Yorkridge Shopping Center

CLIENT: Mark Renbaum

LOCATION: Baltimore County, MD
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Woodmoore Towne Centre

Woodmoore Towne Centre

CLIENT: Petrie Ross Ventures

LOCATION: Prince George's County, MD
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Baltimore Avenue Apartments

Baltimore Avenue Apartments

CLIENT: RST Development, LLC

LOCATION: Prince George's County, MD
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Patuxent Greens

Patuxent Greens

CLIENT: ADC Builders

LOCATION: City of Laurel, MD
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Smith Home Farm/Parkside – Westphalia

Smith Home Farm/Parkside – Westphalia

CLIENT: SHF Owners, LLC

LOCATION: Prince George's County, MD
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National Business Park

National Business Park

CLIENT: Corporate Office Properties Trust

LOCATION: Anne Arundel County, MD
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Waverly Woods

Waverly Woods

CLIENT: Waverly Woods Development Corporation

LOCATION: Howard County, MD
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Waverly Woods

Waverly Woods

CLIENT: Waverly Woods Development Corporation

LOCATION: Howard County, MD
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Waverly Woods

Waverly Woods

CLIENT: Waverly Woods Development Corporation

LOCATION: Howard County, MD
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Waverly Woods

Waverly Woods

CLIENT: Waverly Woods Development Corporation

LOCATION: Howard County, MD
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What our clients say

Where we do work

United States

Global

Maryland

United States

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FAQ

An impact study (often called Traffic Impact Study or Traffic Impact Analysis, often times abbreviated T.I.S. or T.I.A.) is needed to satisfy State or local Governments Regulations regarding growth management or Adequate Public Facilities Laws.

The peak hour is the highest four (4) consecutive 15-minute periods that typically occur between 6:30 AM & 9:30 AM and 4 PM & 7 PM. It is the heaviest one-hour during the morning and evening commute periods.

A traffic signal can only be obtained from State or local Government if it meets particular volume warrants that are set forth in the MUTCD (Manual on Uniform Traffic Control Devices), a federally mandated publication that provides guidelines on when a traffic signal can be installed. Most traffic signals are installed based upon volume warrants where the traffic volumes are significantly high on the major street such that it creates long delays for vehicles exiting from the minor street. A retail development of 80,000 sq ft to 100,000 sq ft and an office development of 300,000 sq ft will normally meet the minimum thresholds for Government to consider the installation of a traffic signal.

COMAR (Code of Maryland) regulate the State Highway Administration. There is an established process whereby, whenever a property owner or developer desires to have an entrance to a State Highway, an Access Permit must be obtained. The State Highway Administration has the right to deny an entrance permit if access can be gained from an adjoining County or municipal roadway. The State Highway Administration has the right to require an access permit even if the driveway exists, but the property owner wants to change the configuration, size, or development that the existing entrance serves.

Under most circumstances, an access permit can be obtained within a three to six-month time period after the access permit plans have been prepared by the civil and traffic engineer and submitted to the State Highway Administration with appropriate access permit documentation. The State Highway Administration requires a 150% bond to be posted on the construction cost of the access for all work to be undertaken within the State Highway Administration right-of-way.

The benefits of a roundabout versus a traffic signal have become quite evident over recent years. Roundabouts reduce vehicle delay, roundabouts reduce vehicle emission, roundabouts reduce accident frequency and severity.

The diameter of a single lane roundabout ranges from 110 ft to 120 ft.

The diameter of a double lane roundabout ranges from 165 ft to 180 ft.

A common traffic circle does not have the capacity nor the accident reduction capability of a modern roundabout. A traffic circle does not have the geometric design standards that exist with today’s modern roundabouts.

It is recommended by the Federal Highway Administration that the modern roundabout have approach grades of no greater than 3% to 5%.

The Traffic Group, Inc. has gone through years of extensive training, both on a national and an international basis, to understand the “nuances” of designing today’s modern roundabouts. “Tweaking” of poorly designed roundabouts can significantly increase capacity and reduce accident severity by simply making minor changes to the entrance radii.

Maryland Law now states that private property owners in residential communities, commercial communities, and retail communities, must be in conformance with the Manual on Uniform Traffic Control Devices relating to signing and markings. Failure to do so could lead to unnecessary accidents and potential lawsuits.

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